package com.demo.study.base.demos;

import java.util.HashMap;

/**
 * @author baymax
 * @since 2025-07-14
 */
public class Demo4_Map {
    public static void main(String[] args) {
        HashMap<String, String> map = new HashMap<>();
        for (int i = 0; i < 100; i++) {
            map.put("key" + i, "value" + i);
        }
        System.out.println(map.size());
    }
}
